I agree with you here and I think you raise several good points, such as "Go's weakness transmutes into a strength" (allegedly). Indeed that makes no sense for Google to try to claim that.

Your other point is even more interesting, e. g. "before AI, Go sucked and nobody used it" - now this may be an exaggeration or simplification, but it is a great observation nonetheless, because Google suddenly tries to connect Go with the rise of AI, almost as if AI could not have risen without Go, which is indeed very strange as an argument to make by Google here. This also reminds me of Google promoting Dart/Flutter before giving up on this and preparing to send it (eventually) to the infamous Google graveyard at some point in the not-so-distant future.